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Fan Controllers

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Fan Controllers

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  1. Control Freak Dynamic Frequency Fan Controller

    Control Freak Dynamic Frequency Fan Controller

    From £233.71
    You save up to: £41.24
  2. SMSCom 4.5 Amp Twin Fan Speed Controller Mk2

    SMSCom 4.5 Amp Twin Fan Speed Controller Mk2

    From £76.46
    You save up to: £13.49
  3. Variispeed Fan Controller

    Variispeed Fan Controller

    From £8.46
    You save up to: £1.49
  4. Gavita Master Controllers EL1F & EL2F - Gen 2

    Gavita Master Controllers EL1F & EL2F - Gen 2

    From £84.96
    You save up to: £14.99
  5. G.A.S Enviro Controller - V2

    G.A.S Enviro Controller - V2

    From £285.56
    You save up to: £50.39
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Fan Controllers

Seasonal changes in temperature mean that you won’t always need to run your extractor fans at full speed. Here at GroWell, we offer a wide variety of fan speed controllers to help you perfectly balance the intake and extraction rates in your grow room.

There are a number of ways of adjusting the speed of an extractor fan, with the cheapest and most prevalent method being to use a resistive type of controller. These controllers slow the fans using increased resistance and represent an incredibly budget friendly option for adjusting your extractor fan speeds.  

An alternative fan control method available to indoor gardeners involves voltage controllers, which use a variac to alter the actual power supplied to the fan. These controllers are much more heavy duty and do not create any additional fan noise in comparison with resistive type controllers. A more expensive option, these fan controllers generally suit more experienced users. 

If you’re unsure about which fan controller best suits your needs, don’t hesitate to speak to one of our friendly experts on 0333 003 22 96